👉 The term "semisphere" is a geometric shape that consists of two concentric circles, and it can be defined as follows: 1. A semicircle in which both diameters are equal. 2. The portion of a sphere that lies between the center of the sphere (the point where the two radii meet) and the center of the circle. For example, if you have a sphere with a diameter of 4 units, then it will be divided into two halves, each having